docs: def sync(infile, outfile):
      """
      Sync (download) latest policies from the Anchore.io service.
  
      """
  
      ecode = 0
      try:
          rc, ret = anchore_policy.sync_policymeta(bundlefile=infile, outfile=outfile)
          if not rc:
              anchore_print_err(ret['text'])
              ecode = 1
          elif outfile and outfile == '-':
              anchore_print(ret['text'])
      except Exception as err:
          anchore_print_err('operation failed')
          ecode = 1
  
      sys.exit(ecode)